Punch-holder jack



June 30, 19.25.

, ZI j E. A.' BAUMBACHv mmm:v Homan Jkcx s Fi1eamc.2. 1924 Patented .une30, 1,925.

AUNITEDs'rni'riisl PATENT OFFICE.

EMIL A. BAUMBAGH, or CHICAGO, ILLINOIS.

`PUNCH-IjIOLlDEllR JACK. v

Application filed December 22, y192A'. YSerial.1\To.1757,1156.

To al whom t may concern.' l

Be it lznown that I, EMILA. BAUMBACH, a citizen of the United States.,residing lat Chicago, in the county of Cool: and-:State of Illinois,have invented new and useful Improvements inV Punch-Holder Jacks, ofwhich the following is a full, clear, concise, and exact description,reference being had to the-'accompanying drawing, forming a part of thisspecification.

Myinvention relates to a punch holder 'aclnmf i One lof ythe objects of`my invention is to provide a jack for separating the punch holder fromthe die-shoe. l f

A further object is to providezsuch a jack which will be easy tomanipulate and by meansrof `which the punchv holder can be raised bysuccessive steps to separate it from the die shoe.

Further objects will appear Afrom the description and claims.

In the drawings, in which my invention is shown Figure 1 is aperspective view showingv being inserted into position to lift from thedie shoe; View showing the Jack the ack the punch holder Fig. 2 is aside in lifting position;

Iig, 3 is a plan View of the jack with parts broken away. A

The construction shown comprises the punch holder jack for lifting thepunch holder 11 awa)7 from the die shoe 12. In making dies, the diemaker has to do a good deal of cut and try work and in doing this it isoften necessary to bring the punch holder up to the die shoe and lift itup again and repeat this until the punch and die have been fitted andadjusted so as to cooperate properly. If the die shoe is provided withleader pins cooperating with holes in the punch holder, it may requireconsiderable force to separate the punch holder from the die shoe,particularly if the punch holder is heavy. Often a crowbar is used forthis work which is awkward and takes considerable time.

My improved jack comprises a lever .13 having lifting arms 14 insertableunder the punch holder 11 between the punch holder and die shoe and apendant supporting dog 15 pivotally connected to the lever intermediatethe lifting arm and handle, this pendant having a series of footportions 16 anyynected to said lever one of which canengage thedievslioe whereby the punch vholder can be raised step by stepV bysuccessively engaging Succeeding foot lportions with the3die shoe.V y jK' y The jack is provided with Vstop meansffor limiting the distance to`,which'the` lifting arms can be inserted b etweenfthey punch holder andthe die shoe. In the form shown, these meanscomprise an upward extension17 of the pendant dogfwhich up\ v ard extension engages the distanceptowhich the lifting arm can be fin'- serted. This. serves to definitelyposition the lifting armand insure the properI positioning of the leverand ldog with respect tothe die shoe and punch holder. The upwardextensionis so designed that whenV the lifting arms are insertedl as faras they will go, the point of engagement f the engaging foot portionwith the die shoe will be substantially underneath the pivot pin 18connecting the lever and pendant or nearly enough so that the pendantand lifting arms will not be forced to slip when pressure is insert-edon the handle.

p unch holder and liini'ts the l. y

The pendant dog may be provided with a sary.

lVhile I have shown but one form of my invention, it is to be understoodthat I do not desire to limit myself to this particular constructionsince many changes and modications may be Amade therein withoutdeparture from the scope of the following claims.

I claim:

1. A punch punch holder a lever having a lifting arm insertable underthe punch holder between the punch holder and die shoe and a handleportion, and a pendant supporting dog pivotally conintermediate theliftingV arm and handle and having a series of foot portions, any one ofwhich can engage the die shoe whereby the punch holder can be raisedstep byV step by successively engaging succeedingr foot portions withvthe die shoe, said jack being provided with a stop for limiting thedistance to which the lifting arm can be inserted between the punchholder and die shoe. f

holder jack for separating the from the die shoe comprising 2. A punchholder jack for separating the punch holder from the die shoe comprisinga lever having a lifting arm insertable under the punch holder betweenthe punch holder and die shoe and a handle portion, and a pendantsupporting dog pivotally connected to said lever intermediate thelifting arm and handle and having a series of foot portions, any one ofwhich can engage the die shoe whereby the punch holder can be raisedstep by step by successively engaging succeeding foot portions with thedie shoe, said supporting dog having a stop portion extending above saidlever for limiting the distance which the lifting armv can be insertedbetween the punch holder and die shoes. 3. A punch holder jack forseparating the punch holder from the die shoe comprising a lever havinga lifting arm insertable under the punch holder between the punch holderand die shoe and a handle portion, and a pendant supporting dogVpivotally connected to said lever intermediate the lifting arm andhandle and having a series of foot portions, any one of which can engagethe die shoe whereby the punch holder can be raisedstep bystep bysuccessively engaglng succeeding foot portions with the die shoe, saidsupporting dog having a stop portion extending above said lever forlimiting the distance which the lifting arm can be inserted between thepunch holder and die shoe, the portion of said dog above the leverextending away from the punch holder to serve as a counterweight to holdthe foot portion toward the die shoe.

4. A punch-holder jack Afor separating a punch holder from a die shoecomprising a lever having two spaced lifting arms to be inserted underthe punched holder between the punch holder and die shoe, and a handleportion, and a pendant supporting dog pivotally connected to said leverbetween said lifting arms and having a series of foot portions, any oneof which can engage the die shoe, whereby the punch holder can be raisedstep by step to successively engage succeeding foot portions with thedie s oe.

In witness whereof, I have hereunto subscribed my name. Y

EMIL A. BAUMBACH.

